{"id":165003,"date":"2026-03-17T17:12:39","date_gmt":"2026-03-17T15:12:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/facebook-vozobnovil-razrabotku-biblioteki-upravleniya-pamyatyu-jemalloc"},"modified":"2026-03-17T17:12:39","modified_gmt":"2026-03-17T15:12:39","slug":"facebook-vozobnovil-razrabotku-biblioteki-upravleniya-pamyatyu-jemalloc","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/facebook-vozobnovil-razrabotku-biblioteki-upravleniya-pamyatyu-jemalloc","title":{"rendered":"Facebook ha ripreso lo sviluppo della libreria di gestione della memoria jemalloc","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>L'azienda Meta* ha annunciato il ripristino dello sviluppo della libreria di gestione della memoria jemalloc, il cui repository \u00e8 stato archiviato a partire da giugno dello scorso anno. La libreria jemalloc offre un'implementazione alternativa delle funzioni malloc, ottimizzata per ridurre la frammentazione e per funzionare su sistemi multiprocesso.     <\/p>\n<p>Si segnala che Meta ha compreso i vantaggi dell'uso di jemalloc nella propria infrastruttura e ha deciso di riprendere il lavoro sul codice di questa libreria per ridurre i costi di manutenzione, aggiornare la base di codice, eliminare il debito tecnico e adattare l'allocatore a nuove tipologie di carico e all'hardware attuale. Lo sviluppo continuer\u00e0 come progetto open source, evoluto in collaborazione con la comunit\u00e0 e apertamente disponibile alla partecipazione di terzi.    <\/p>\n<p>La libreria jemalloc \u00e8 stata sviluppata da Jason Evans nel 2005 per FreeBSD 7.0, dopodich\u00e9 \u00e8 stata portata su NetBSD e integrata in Firefox. Nel 2009, l'autore di jemalloc \u00e8 passato a lavorare per Facebook, dove questa libreria \u00e8 stata utilizzata in progetti interni. Nel 2017, Jason ha lasciato Facebook e lo sviluppo \u00e8 proseguito con il team rimasto. Dopo il cambio di nome in Meta, le priorit\u00e0 dell'azienda sono cambiate, lo sviluppo della libreria si \u00e8 fermato e si \u00e8 concentrato solo sulle esigenze interne, mentre la base di codice pubblica \u00e8 lentamente degradata. Per mantenere attiva la libreria pubblica era necessaria una significativa ristrutturazione, ma Jason non era disposto a dedicare tempo a questo lavoro e quindi, 10 mesi fa, ha archiviato il repository.      <\/p>\n<p>Tra i piani che Facebook ha in programma di realizzare dopo la rinascita del progetto ci sono:  <\/p>\n<ul>\n<li class=\"l\"> Riduzione del debito tecnico accumulato, rifattorizzazione e pulizia della base di codice, miglioramento della libreria per mantenere efficienza, affidabilit\u00e0 e facilit\u00e0 d'uso.\n<li class=\"l\"> Continuazione dello sviluppo dell'allocatore HPA (Huge-Page Allocator) per ottimizzare il consumo delle risorse CPU attraverso un utilizzo pi\u00f9 efficiente delle grandi pagine di memoria (transparent hugepage).\n<li class=\"l\"> Modifica per migliorare l'efficienza nella gestione della memoria, legata a un miglioramento della struttura di impacchettamento, caching e pulizia dei blocchi di memoria liberati.\n<li class=\"l\"> Aggiunta di ottimizzazioni per l'architettura AArch64 (ARM64).    <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65006\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Meta* \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u0432\u043e\u0437\u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u044c\u044e jemalloc, \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0439 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0432 \u0438\u044e\u043d\u0435 \u043f\u0440\u043e\u0448\u043b\u043e\u0433\u043e \u0433\u043e\u0434\u0430 \u0431\u044b\u043b \u043f\u0435\u0440\u0435\u0432\u0435\u0434\u0451\u043d \u0432 \u0430\u0440\u0445\u0438\u0432\u043d\u044b\u0439 \u0440\u0435\u0436\u0438\u043c. \u0411\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430 jemalloc \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u0442 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u043d\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u0439 malloc, \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0443\u044e \u0434\u043b\u044f \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044f \u0444\u0440\u0430\u0433\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u0438 \u0438 \u0440\u0430\u0431\u043e\u0442\u044b \u043d\u0430 \u043c\u043d\u043e\u0433\u043e\u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445. \u041e\u0442\u043c\u0435\u0447\u0430\u0435\u0442\u0441\u044f, \u0447\u0442\u043e \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Meta \u043e\u0441\u043e\u0437\u043d\u0430\u043b\u0430 \u043f\u0440\u0435\u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u0430 \u043e\u0442 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f jemalloc \u0432 \u0441\u0432\u043e\u0435\u0439 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0435 \u0438 \u0440\u0435\u0448\u0438\u043b\u0430 \u0432\u043e\u0437\u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u0440\u0430\u0431\u043e\u0442\u0443 \u043d\u0430\u0434 \u043a\u043e\u0434\u043e\u043c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-165003","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Meta* \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u0432\u043e\u0437\u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u044c\u044e jemalloc, \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0439 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